Brass piano pillow is much ABS plastic piano pillow, you can get clearer, richer and more stable sound; Can enhance the overall grade of the guitar, to improve the guitar's sound quality has a certain role, for guitar replacement; Suitable for the size of the 6-string folk guitar used. Brass gives your acoustic guitar greater "ring" and projection! Brass Offer you a more attractive tone than other plastic pins. Made of durable brass material,designed for long time use and Durable. Material: Brass Color: Gold Size: nut 43*6*8.2/8.8mm,saddle 76*3*6.9/7.8mm,pin 30mm. Package Contents: 1 x upper nut 1 x under nut 6 x bridge pin Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.